Question
A solution contains 25 ppm (parts per million) of both potassium and chloride. Which element is...
A solution contains 25 ppm (parts per million) of both potassium and chloride. Which element is present in greater molar abudance?
Answers
mass concentration of potassium = 25 ppm
mass concentration of chloride = 25 ppm
molar mass potassium = 39.1 g/mol
molar mass chloride = 35.45 g/mol
To convert mass concentration into molar concentration, mass concentration has to be divided by molar mass.
Hence, molar concentration is inversely proportional to molar mass.
Less the molar mass, higher will be the molar concentration.
Since, molar mass of chloride is less than potassium, therefore, molar concentration of chloride will be more than potassium.
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